I tried to config using network manager and Fix Wireless Ad-Hoc in GUI but didn't work.
When I try to put wlan0 up, I receive an error: SIOCSIFFLAGS: No such file or directory
Do you have any idea about this error?
Thanks alot
Paul

Firstly, do you see anything if you run command: iwconfig ?
If nothing shown as wlan0 or your Network Manager program isn't giving you a wireless device, then your device probably not natively supported.

I've personally only used ndiswrapper for wireless devices, which aren't natively supported. I do believe madwifi is the preferred alternative though. However, in case you want to give it a try. You will need to install ndiswrapper-1.9, do the following if you have internet through the wired connection.

From Synaptic Package Manager:
search for ndiswrapper in search function, check off the applications mentioned above and apply.

This should install the ndiswrapper application and the graphical frontend for it, which can be found from System->administration->windows wireless drivers.
[As you can imagine you will need the windows driver file for this to work. You only need the .inf file, which can probably be found on your windows partition already(if dual booting).]

I have a HP pavilion ze4900 which I had problems getting the wireless to work. Upon a fresh install of Ubuntu 9.10 and 10.04 both OS installed the wire less Broadcom b43 drivers after the reboot. It simply just said new drivers are available under hardware drivers (System /Administration /Hardware Drivers) I too was trying to install them like this but did not work.

If you have 10.04 OS installed,
From the panel: System-->Administration--> Hardware Drivers

There, probably you see two options: Broadcom STA Wireless driver or
Broadcom 802.11
Try with the first or second, depending on your pc, and reboot the system.
If all is ok, the icon of network connection will show you, you're connected to a wireless network.
Paul

Veronica -- the other questions in this thread are about Linux machines -- is yours?

Check to make sure you have wireless turned on (there is a toggle switch/button). If you do and are still having problems, if this is a Windows machine, please start a new thread so we can do Windows troubleshooting with you.

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